Either a fun April Fool, or a foreshadowing of a reintroduction of Trek steel, like the iconic 520 touring bike. But I think a clue is the "125% efficiency", uh, usually max is 100% efficiency in such a test. But in reality, good quality high strength steel, designed for the tubes, has good ride quality, is durable and not fragile like thin carbon, is repairable, and is easily recycled (unlike carbon in resin).